# syntax=docker/dockerfile:1

# ---------- Builder stage ----------
FROM python:3.12-slim AS builder

WORKDIR /build

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy dependency file
COPY backend/pyproject.toml ./

# Install dependencies into a virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -e .

# ---------- Development stage ----------
FROM python:3.12-slim AS development

WORKDIR /app

# Create non-root user
RUN useradd --create-home --uid 1000 app && \
    mkdir -p /app/data && \
    chown -R app:app /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Switch to non-root user
USER app

EXPOSE 8000

# ---------- Production stage ----------
FROM python:3.12-slim AS production

WORKDIR /app

# Create non-root user
RUN useradd --create-home --uid 1000 app && \
    mkdir -p /app/data && \
    chown -R app:app /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Copy backend code
COPY --chown=app:app backend/ /app/

# Switch to non-root user
USER app

EXPOSE 8000

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]